<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/html">
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" href="../libs/bootstrap/3.3.7/css/bootstrap.min.css">
    <script src="../libs/jquery/2.1.1/jquery.min.js"></script>
    <script src="../libs/bootstrap/3.3.7/js/bootstrap.min.js"></script>
    <title>Title</title>
    <style type="text/css">
        .div {background-color: antiquewhite;  }
        h1 {text-align:center;}
        h4.date {text-align:right; color: red;}
        p.main {text-align:justify; color: aquamarine; font-family:Arial,Helvetica,sans-serif;}

    </style>
    <style>
        .customers
        {
            font-family:"Trebuchet MS", Arial, Helvetica, sans-serif;
            width:100%;
            border-collapse:collapse;
        }
        .customers td, .customers th
        {
            font-size:1em;
            border:1px solid #98bf21;
            padding:3px 7px 2px 7px;
        }
        .customers th
        {
            font-size:1.1em;
            text-align:left;
            padding-top:5px;
            padding-bottom:4px;
            background-color:#A7C942;
            color:#ffffff;
        }
        .customers tr.alt
        {
            color:#000000;
            background-color:#EAF2D3;
        }

        .customers tr.altddddddd
        {
            color:red;
            background-color:#EAF2D3;
        }
    </style>
</head>
<body style="text-align: center">


<form>
    <table style="margin-left: auto; margin-right: auto;">
        <tr>
            <td>输入:</td>
            <td><input type="text" name="firstname"><br></td>
            <td>&nbsp;</td>
        </tr>
        <tr>
            <td>输入:</td>
            <td><input type="password" name="lastname"></td>
            <td><input type="submit" name=""></td>
        </tr>
        <tr>
            <td><button>button1</button></td>
            <td><textarea>sss</textarea></td>
            <td><select name="select1">
                <option value="1">1</option>
                <option value="2">2</option>
                <option value="3">3</option>
            </select></td>
        </tr>
        <tr>
        <td>1<input type="radio" name="radio1" value="radio1">
            2<input type="radio" name="radio1" value="radio2">
            3<input type="radio" name="radio1" value="radio3">
            4<input type="radio" name="radio1" value="radio4">
        </td>
        <td><input type="reset"></td>
        <td><input type="submit" value="提交1"></td>
    </tr>
    </table>
</form>

</body>
</html>